GMC Acadia Complaints

359 consumer complaints on file.

#11680872August 15, 2025
SUSPENSION
The contact owns a 2022 GMC Acadia. The contact stated while driving 5 MPH, there was an abnormal clunking sound coming from the rear of the vehicle. There was a squeaking and squealing sound coming from the rear of the vehicle. There were no warning lights illuminated. The local dealer was contacted, and an appointment was scheduled. The vehicle was not yet diagnosed or repaired. The manufacturer was contacted and referred the contact to the NHTSA Hotline for assistance. The approximate failure mileage was 56,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11680471August 13, 2025
ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
The contact owns a 2024 GMC Acadia. The contact stated that upon starting the vehicle, the instrument panel remained blank. There was no warning light illuminated. The vehicle was taken to a dealer to be diagnosed; however, the contact was informed that the failure could not be duplicated, and no fault was found with the vehicle. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 200.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11680136August 12, 2025
ENGINE
While 2 hours from home driving down the interstate with a full vehicle, the vehicle alarmed and the screen notified "No Oil Pressure, Turn Car Off Now". I pulled over immediately and we had to sit on the edge of the interstate for 45 minutes - a safety hazard for us and the surrounding traffic. The vehicle was towed to the nearest GM dealer, where they assessed the vehicle and advised that this is a known issue for 2024 and 2025 GMC Acadias and Traverses. The vehicle failed to move oil and the engine was seized - a significant safety hazard. After a month, GM has informed us that zero replacement engines are available in the world and there is no timeline for replacement or repair and the vehicle is unusable.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11680024August 12, 2025
SERVICE BRAKES
I purchased the vehicle, and twelve days later while operating the vehicle I experienced full braking power failure. My foot was to the floor board while trying to get the car to slow down. Up until the point of brake failure, there were no warning lights or "symptoms" that would alert me as to an impending problem. My young child was also in the car so that was extremely scary also. During this time, the "service brake assist" light and ABS light came on. I was able to slow the car down enough, restart the car, and the brakes seemed to work, however all of the related braking lights were on my dash. It was brought to the dealer the next day. The dealer has noted that its the master cylinder that needs to be replaced. However, they replaced it, and the new master cylinder has also failed, so they'll need to try and replace it again. I'm concerned this issue could cause severe accidents in the future if it continues to not be addressed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11679553August 9, 2025
SERVICE BRAKES, STEERING
Upon starting the vehicle the vehicle immediately starting moving while foot on brake and moved from park to reverse or drive. Unable to stop the vehicle in idle gear and no gas pedal applied. Power steering warning and no brake assist warning on the dash. Unable to stop vehicle within 20ft while traveling at idle speed. Vehicle lights and warnings have been reproduced and is currently at a dealership awaiting further inspection. Vehicle is available for third party inspection if needed. Vehicle at Barker Buick GMC, 6444 W Main St, Houma, LA 70360 on 8/4/25
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11679168August 7, 2025
ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM
Car was parked overnight in my garage and in the morning it would turn over, but not start. Had to have it towed to my GMC dealer, but had great difficulty moving the car out of the garage because the transmission remains in PARK if the engine is not running. Had this happened on a highway while driving and without a place to safely get off the road ( which HAS happened to others who have made this same complaint to NHTSA), this could have been an extremely hazardous situation for the occupants of the vehicle. The engine will suddenly shut down, power steering is lost, and power braking will also be lost. This problem was diagnosed as a failed fuel pump module. The failed part was replaced by the dealer (GM part#13554820). The service manager acknowledged that this is a known and common issue and that GM is aware of it but has not issued a voluntary recall. The manager also advised that this part has not been updated and that it may fail again without warning. Please....this is a serious safety issue that needs to be addressed before someone is injured or killed while abandoning a car stalled in traffic that cannot be moved.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11679159August 7, 2025
ELECTRICAL SYSTEM, FORWARD COLLISION AVOIDANCE: WARNINGS, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
Instrument cluster malfunction. Entire instrument cluster blacking out every 60 seconds, then rebooting nonstop while driving. While this was occurring, none of the advanced driver assistance systems functioned, nor did the speedometer or other gauges. This occurred while on a trip, and meant having to travel a long distance without having emergency braking, collision warnings or the ability to monitor speed. The car was taken to local dealer and they replaced the entire instrument cluster.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11679053August 7, 2025
SERVICE BRAKES, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
dash lit up with ABS, traction control, and ESC warnings. Technician stated the entire brake system needed to be rebuilt. There is currently no ETA on when the parts to be able to accomplish this will be available.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11678964August 7, 2025
UNKNOWN OR OTHER
Around 7k miles on the vechicle, driving down the road it kept coming to a stop and skipping. Pulled into the parking lot the best that I could and put it into park. After it wouldn't shift into anything. Never gave any dash signals. It is currently in the shop getting a whole new transmission.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11678724August 6, 2025
SERVICE BRAKES, FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, LANE DEPARTURE: ASSIST
Approximately July 12 2025 while driving to dinner two warnings showed on the Driver Information Cluster (1) Check Brake Assist (2) Check ESC. Took vehicle to dealer the next business day for diagnosis. Service department stated the problem was the EBCM or Electronic Brake Control Module and the parts are on a Nationwide backorder. Since the part failure all brake system associated lights on the gauge cluster are illuminated and non of the associated safety systems are functional including but not limited to ABS, Stabilitrak, Lane Keep Assist, Adaptive Cruise, Crash Avoidance or standard cruise control.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11678212August 4, 2025
ELECTRICAL SYSTEM
The fuel pump control module failed, 2021Acadia Denali First time, 9/22/21 8073 miles, the car was parked at the residence under the car port, when needed, the car would not start. No check engine or other indicators. Car was towed to dealer for repairs under warranty. Second time, 10/6/23 31879 miles, we were driving the car on a rural road, 55 mph speed limit with no shoulders when the car stopped in a curve. Had to flag down cars to keep them from hitting us for an hour till the wrecker loader it on the truck to take back to same dealership for warranty repairs. Third time, 7/29/25 48199 miles, we were again on a rural road 55 mph speed limit when the car stopped with my 71 year old wife alone in the car, again in a curve. This time there was a check engine light. I drove my truck to pick her up and assist her until the wrecker came. This time with luck I was able to restart the car and I followed her to our home where the tow truck picked it up and brought it to the same dealership for the third time for repairs under warranty. All three times the culprit was the fuel pump control module. Each time it was the same code in the ECM. Each time the dealership said they did a full check on the fuel system, pump, etc. and only replaced the fuel pump control module.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11678204August 4, 2025
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING, SERVICE BRAKES, UNKNOWN OR OTHER
At startup today vehicle displayed “Brake Assist Failure. Press Hard to brake. Speed limited.” It also displayed “service.” It also displayed “ESC,” and the word “service. An internet search indicated this may be a common problem of this vehicle, caused either by a software error in the Electronic Brake Control Module, or due to a defective brake master cylinder. There is a GM service notice for these defects, N242471431. Regardless of the cause, the brake is extremely mushy, and requires a high degree of force to stop the vehicle. GM says there is no recall due to this defect. This is a brand new vehicle and therefore it must be a defect in the vehicle. Given that braking is a fundamental safety issue, it’s hard to believe there is no recall already issued.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11677430July 31, 2025
SERVICE BRAKES
New 2025 GMC Acadia Denali vehicle with only 5,600 miles driven. When starting SUV I pressed start button and brake pedal. I felt the brake pedal pulse down. Once started, the dashboard lit up with warnings of Service ESC and Service Brake Assist. Quickly took to dealer, they ran diagnostic tests and revealed the Master Brake Cylinder is out. Dealer said I should Not drive it due to danger of brakes completely failing! Dealer has other 2025 Acadia's come in with no brakes at all due to same issue and they are still there waiting on same part. Dealer and GM have NO estimate of when they will have a new Master Brake Cylinder as this part is on back order. A case has been created with GM regarding part availability delay. My research has revealed numerous owners of 2025 Acadia, Traverse and Enclave with this same Master Brake Cylinder failure and no parts available waiting months. Brake failure is a MAJOR SAFETY hazard! GM has stopped selling the 2026 Acadia, Traverse and Enclave. They should recall all 2025 Acadia, Traverse and Enclave!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11677349July 30, 2025
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
When backing up and nothing behind car abruptly applies brakes no alerts. This has occurred on multiple occasions and is very scary. This started first week of ownership took to the dealer and was told GM is aware of the issue but no repair available at the time. the car is a year old now and problem is still present I have had to disable the braking feature. The backing emergency braking is a safety feature so pedestrians / children don’t get run over.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11677129July 29, 2025
SERVICE BRAKES, FORWARD COLLISION AVOIDANCE: WARNINGS, FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
Vehicle had a "service ESC" and "service brake assist". Dealership said the master cylinder is bad and it is not safe to drive. Now its sitting at the dealership with NO eta on parts and no loaner cars.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11677116July 29, 2025
SERVICE BRAKES
My car has less than 8,000 miles currently. On June 5, I started my car and lights were on saying I needed service and maintenance. I believe it was around 4500 miles at the time. I took it in once, where I bought my car, they said it just needed an update. The next day, all of the same lights were on. Turns out, I need a new brake master cylinder. It’s on back order. I bought this car in April. It’s been in the shop for a month. This is ridiculous. - the notifications said I needed electronic stability control and service brake assist maintenance.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11676817July 28, 2025
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER
The contact owns a 2023 GMC Acadia. The contact stated while driving 55 MPH, while attempting to depress the brake pedal, the contact heard an abnormal sound coming from the brakes. A dealer and independent mechanic were contacted. No warning light was illuminated. The vehicle was taken to an independent mechanic to be diagnosed, and the contact was informed that the brake pads wear was uneven on the driver’s side and the driver’s side front caliper needed to be replaced. The vehicle was then taken to the dealer where it was diagnosed; however, the result was not provided. The brake pads were replaced; however, the caliper was not yet replaced. The manufacturer was notified of the failure, and informed the contact to take the vehicle to the dealer for assistance. The approximate failure mileage was 39,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11676771July 28, 2025
SERVICE BRAKES
Brake Master Cylinder failure. Received warning lights on the dash and took to the GMC dealer for the diagnosis. Dealer stated the car is not drivable because the brakes could fail. The head mechanic at the dealership confirmed that the cylinder is the problem. They had no idea as to how long it would take to find a replacement cylinder.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11675409July 22, 2025
SERVICE BRAKES, FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
At approximately 4900 miles, the brake master cylinder failed on my vehicle. It has been at the dealership for over a month awaiting parts for repair.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11675163July 21, 2025
EXTERIOR LIGHTING, UNKNOWN OR OTHER
The driver and infotainment center is so dim during the day that it is dangerous to drive the vehicle. I have taken the vehicle in to the dealer 3 times and each time the dealer indicates that there doesn't appear to be a problem, but at no time to my knowledge have they taken the vehicle out into the sunlight, There have been 2 Software updates at the dealer and one OTA update so far with no improvement. The screens are so dim that there is no way you can tell what icons are there. If you try to do anything while driving, you are taking way too much time trying to look at the screens and as a result a serious and unnecessary amount of distracted driving is occurring. There is no way you could wear sun glasses and view the screen because it appears black. Don't open the panoramic sunroof or the problem is worse. Anti glare screen protectors make the situation worse. I have attached a document I provided to the dealer service department on my latest visit.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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